Locomotive-crane



(No Model.) 4 Sheets-Sheet 1.

0. CROSBY.

LOGOMOTIVE CRANE.

No. 572.195. Patented Dec. 1, 1896.

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(No Model.) 4 Sheets-Shet 2.

O. CROSBY.

' LOGOMOTIVE CRANE.

No. 572,195. Patented Dec. 1, 1896.

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(No Model.) I 4 Sheets-Sheet 3 0. CROSBY. LOGOMOTIVE CRANE.

No.5 2,1 5. Patented Dec. 1, 1896.

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ATTORNEY (No Model.) 4 Sheets- -Sheet 4.

0. CROSBY.

Q LOUOMOTIVB CRANE. 572,195 Patented De0.1,1896

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UNITED STATES PATENT OFFICE.

OLIVER CROSBY, OF ST. PAUL, MINNESOTA.

LOCOMOTlVE-CRAN E.

SPECIFICATION forming part of Letters Patent No. 572,195, dated December1, 1896.

Application filed April 6, 1896. Serial No- 586,419. (No model.)

To all whom, it may concern.-

Be it known that I, OLIVER CROSBY, of St. Paul, Ramsey count-y,Minnesota, have invented certain Improvements in Locomotive- Cranes, ofwhich the following is a specification.

My invention relates to improvements in locomotive-cranes, its objectbeing to provide an improved driving mechanism therefor so connected totraction-wheels on theopp'osite rails of the track whereby said wheelsare positively operated so as to each do its proportionate work.

To this end my invention consists in mounting the platform of the craneupon four beams arranged one at each corner thereof, which beams in turnare supported each upon a pair of two-wheeled trucks, the connectionsbetween trucks and beam and beam and platform being pivotal to permitfreedom of adjustment of the truck-wheels to the curvatures of thetrack. Intermediate of the front and rear trucks on each side .I arrangea driving or traction wheel, the two being connected by a cross-beam ortruck and each being double-flanged to prevent derailment. It isapparent that in passing around curves there is of necessity relativelateral movement between the driver-truck and the platform. This isprovided for by an intermediate traveling connection. This consists of asecondary platform upon each of said trucks, directly over its wheel,fitted with antifriction rollers,

weight of the platform and crane is carried, a suitable plane-surfacedplate resting upon the platform, and between this plate and platform arearranged heavy springs with adj usting-screws, by means of which anydesired pressure of portion of the load is applied to the plate and itscarrying-rolls. The driving-wheels are operated from a common source ofpower, so as to be driven at a uniform com bined speed by means of aninterposed epicyclic train and connected gear. This train is mountedupon a counter-shaft having a sliding connection with the driving-gearwhich operatively engages the traction-wheels, so that the power istransmitted to these wheels no matter what their lateral position may bewith relation to the platform, owing to the My invention furtherconsists in the features of construction hereinafter particularlydescribed and claimed. In the accompanying drawings, forming part ofthis specification, Figure 1 is a side elevation of my improvedapparatus shown with the crane removed. Fig. 2 is a crosssection of thesame, looking toward the carrying-wheels and showing the means fordriving the same from a central vertical shaft. Fig. 3 is a similarenlarged detail of one of the carrying-wheels and its connected parts;and Fig. 4 is a detail side elevation of the'driving parts, lookingtoward the epicyclic train and driving-wheels beyond.

In the drawings, A represents the platform, each corner of which ismounted upon a beam 2, each beam in turn being mounted upon a pair oftrucks 3 and 4:, each of the trucks havin g carrying-wheels 5. Thetrucksturn about vertical pivots 6, and the beam 2 also turns upon a verticalpivot 7, connecting it to the platform,whereby tl1e truck-wheels runfreely upon the rail 8 without regard to its curvatures. trucks on eachside of the platform is a driving. or traction wheel. 9. This isdoubleflanged, as shown best in Fig. 3, so as to pre-' vent derailmentor lateral slip in either direction upon the rail. These wheels carryand are rigidly connected together by the cross beam or truck-10. Uponthe top and at each of the cross-beams is arranged a secondary platform36, carrying series of antifriction- Arranged between the front and rearrolls 11, and upon these rests the plane-sun .of gears 10, one upon eachend of the same,

by means of which it receives its driving power. These mesh with thepinions 17, carried by the shaft 18, turning in bearings 10, 20, and 21.This shaft also carries the gear 22, which meshes with the pinion 23.This IOC pinion has an extended hub 24, which serves as a journaltherefor, turning in the bearing and having an end flange 34, preventinglongitudinal or sliding movement in the bearing. The connected member ofthe compound driving-shaft 26 slides freely through the hub of saidpinion, but is held from turning by means of the spline of feather 27.The two members of the compound shaft are connected by the epicyclictrain B, made up of the beveled gear 28, carrying the beveled pinions29, which mesh with the pinions 30, keyed on the shaft 26. The gear 28is driven by means of the gear 31 upon the vertical driving-shaft 32,which is connected to the source of power by any suitable means, such asthe gear 35.

In operation the nuts 33 of the screws 15 are set to apply any desiredand requisite load to the traction-wheels. Power then being applied tothe driving mechanism the traction-wheels are both positively anduniformly driven, and on equal speeds on a straight track, but onmeeting a curve in the track the epicyclic train distributes the powerto the wheels, so as to drive them without slipping around curves, thetraction-wheels and their cross-beam moving laterally with relation tothe platform, the antifriction-rolls permitting of this movement and thepinions 23 sliding on the shaft 20.

I claim 1. In a locomotive-crane, the combination with the main platformand its groups of carr yin g-wheels arranged at each corner thereof, ofthe traction-wheel on each rail intermediate of the forward and rearcarrying-wheels, their connecting beam or truck, the laterallyslidableconnections between said cross-beam and platform, the driving-shaft, andthe epicyclic train for transmitting power therefrom to both saidtraction-wheels.

2. In a locomotive-crane, the pair of con nected traction-wheelstherefor arranged one on each rail, the antifriotion-rolls carried by Icombination with the front and rear carryingwheels, of theirintermediate traction-wheels, the rigid connection between saidtractionwheels, means for driving said wheels, and thelaterally-traveling connection between said wheels and said vehicle.

5. In a vehicle of the class described, the combination of themedially-arranged traction-wheels on both rails, their rigidconnecting-bar, the common driving mechanism for said wheels, theinterposed epicyclic train, and the laterally-traveling connectionbetween said traction-wheels and vehicle.

6. In a vehicle of the class described, the combination with the frontand rear carryin gwheels, of the intermediate traction-wheels, the barconnecting said wheels, the bearingplates and an-tifriction-rollsconstituting a lat- .erally-traveling connection between saidtraction-wheels and the vehicle, means for applying any desired load tosaid traveling connections, the driving-shaft upon said vehicle, thepinions having hubjournals carried upon said shaft permitting relativesliding movement, and the operative driving connection between saidpinions and traction-wheels.

7. In a vehicle of the class described, the combination of the flangedtraction-wheels on opposite rails, their rigid connecting-bar, thelaterally-traveling connection between said bar and vehicle, consistingof the series of antifriction-rolls, the plate bearing upon the same,and the springs and tension-screws interposed between said plate and thebody of the vehicle, the common source of power, the epicyclic trainconnected therewith, the driving-gear for the opposite traction-wheels,and the interposed slidably-connected driving-shaft and pinion foroperating said traction from said train.

8. In a vehicle of the class described, the combination with its mainbody or platform, the vertically-swiveled carrying-trucks at the cornersthereof, the intermediate drivingwhcels, their rigid connection, thesource of power carried by said vehicle, and the laterally-slidabledriving connection between said source of power and saidtraction-wheels.

In testimony whereof I affix my signature in presence of two witnesses.

OLIVER CROSBY. \Vitnesses:

T. D. MERWIN, MINNIE L. THAUVVALD.

IIO

